Rockville ZIP Codes — Montgomery County, MD

There are 8 unique ZIP codes in Rockville, Maryland. Area code: 301/240.

ZIP codes

33.76

sq mi land

0.19

sq mi water

301/240

area code

Rockville, MD ZIP code map

About Rockville, MD

Rockville, MD, is a suburban city located in Montgomery County, Maryland. It is known for its rich history and vibrant community, making it a popular place for both residents and visitors. With a variety of cultural attractions and local events, Rockville offers a unique blend of urban convenience and suburban charm.

Location & geography

Rockville is situated approximately 20 miles northwest of Washington, D.C., making it an ideal location for commuters. The city is bordered by nearby cities such as Gaithersburg to the north, Bethesda to the southeast, and Silver Spring to the east. Covering 47.88 square miles of land and 0.25 square miles of water, Rockville features a mostly flat terrain with verdant parks and recreational areas.

Community & economy

The character of Rockville is marked by its diversity and engagement in community activities, which foster a strong sense of belonging among residents. The city's economy is supported by various industries, including healthcare, education, and technology, reflecting its status as a hub for professionals. Daily life in Rockville comprises a mix of shopping, dining, and recreational opportunities, evident in the lively Rockville Town Square.

Transportation

Rockville is accessible via major highways such as Interstate 270 and Maryland Route 355, which facilitate easy travel to surrounding areas. The nearest airport is the Montgomery County Airpark, while residents can also utilize the Washington Metro's Red Line for convenient transit throughout the region.

History

Rockville was founded in the 18th century and has since developed from a small agricultural community into a thriving urban center. Key industries have historically included agriculture and trade, with notable events such as the establishment of the Rockville Town Center revitalizing the area. Today, the city continues to honor its heritage while embracing growth and modernization.

Did you know?

One surprising fact about Rockville is that it is home to the annual Rockville Arts Festival, which showcases local artists and attracts visitors from across the region. Additionally, Rockville boasts one of the largest populations in Montgomery County, making it a significant player in the local economy.

ZIP codes for Rockville, MD (8)

ZIP code	City	County	Map
20847	Rockville	Montgomery	View map
20848	Rockville	Montgomery	View map
20849	Rockville	Montgomery	View map
20850	Rockville	Montgomery	View map
20851	Rockville	Montgomery	View map
20852	Rockville	Montgomery	View map
20853	Rockville	Montgomery	View map
20857	Rockville	Montgomery	View map

Demographics & statistics

145,904

Population

39.6

Median age

$126,792

Median household income

$63,447

Per capita income

$585,225

Median home value

$2,066

Median monthly rent

59.5%

Home ownership

7.6%

Poverty rate

4.0%

Unemployment

34,748

Housing units

58.3%

Bachelor's or higher

Age distribution

Male Female

3,367

Under 5

3,500

3,888

5–9

4,042

4,576

10–14

4,758

3,948

15–19

4,106

4,575

20–24

4,756

10,512

25–34

10,931

10,174

35–44

10,578

9,533

45–54

9,912

4,525

55–59

4,705

4,190

60–64

4,357

6,285

65–74

6,534

4,029

75–84

4,190

1,928

85+

2,005

← Male

Female →

Age summary

Group	Count	%
Under 18	29,195	20.2%
18 and over	116,709	79.8%
65 and over	24,971	16.4%
Median age	39.6 years

Race & ethnicity

White 44.7%

Asian 17.7%

Hispanic or Latino 12%

Black or African American 9.9%

Two or more races 7.8%

Other race 7.5%

American Indian / Alaska Native 0.3%

Group	Count	%
White	74,226	44.7%
Asian	29,385	17.7%
Hispanic or Latino	19,965	12%
Black or African American	16,389	9.9%
Two or more races	13,017	7.8%
Other race	12,417	7.5%
American Indian / Alaska Native	468	0.3%

Household income

Under $10k 3.2%

$10k–$15k 1.9%

$15k–$25k 3.1%

$25k–$35k 4.1%

$35k–$50k 6.8%

$50k–$75k 10.5%

$75k–$100k 10.8%

$100k–$150k 20.5%

$150k–$200k 14.8%

$200k+ 24.5%

Range	% of households
Under $10k	3.2%
$10k–$15k	1.9%
$15k–$25k	3.1%
$25k–$35k	4.1%
$35k–$50k	6.8%
$50k–$75k	10.5%
$75k–$100k	10.8%
$100k–$150k	20.5%
$150k–$200k	14.8%
$200k+	24.5%
Median income	$126,792

Housing

Home values

Under $50k 1.5%

$50k–$100k 0.5%

$100k–$150k 0.6%

$150k–$200k 1.2%

$200k–$300k 4.7%

$300k–$500k 32.5%

$500k–$1M 49.4%

$1M+ 9.7%

Housing overview

Metric	Value
Median home value	$585,225
Median rent / month	$2,066
Owner occupied	59.5%
Renter occupied	40.5%
Vacant	5.0%
Single-family detached	51.5%
Large apartment buildings	23.8%
Mobile homes	0.0%
Median rooms	5.8
Avg household size (owned)	2.73

Year built

Era	%
2020 or later	0.2%
2010–2019	7.7%
2000–2009	11.8%
1990–1999	9.6%
1980–1989	10.9%
1970–1979	12.2%
1960–1969	22.3%
1950–1959	20.3%
1940–1949	3.2%
1939 or earlier	1.9%

Bedrooms

Size	% of units
No bedroom (studio)	3.3%
1 bedroom	14.1%
2 bedrooms	21.1%
3 bedrooms	26.8%
4 bedrooms	24.3%
5+ bedrooms	10.3%

Vehicles per household

Vehicles	% of households
No vehicle	8.1%
1 vehicle	36.4%
2 vehicles	35.7%
3 or more	19.8%

Heating fuel

Fuel type	%
Utility gas	64.9%
Electricity	32.4%
Propane / LP gas	0.8%
Fuel oil	0.9%
Wood	0.2%
Solar	0.3%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	27,053	48.9%
Cohabiting couple	3,547	5.7%
Male householder, no spouse	10,027	17.6%
Female householder, no spouse	16,766	27.8%
Households with children under 18	16,293	30.0%
Households with seniors (65+)	17,216	30.8%
Average household size	2.67

Marital status

Status	Male	Female
Never married	37.2%	32.9%
Married	52.4%	46.6%
Separated	1.6%	1.9%
Widowed	2.4%	8.0%
Divorced	6.5%	10.7%

Education

Less than 9th grade 4.4%

Some HS, no diploma 5.1%

HS graduate 13.6%

Some college, no degree 13.0%

Associate's degree 5.6%

Bachelor's degree 26.6%

Graduate / professional 31.7%

Metric	%
HS diploma or higher	90.5%
Bachelor's or higher	58.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	1,936	6.2%
Kindergarten	1,819	5.2%
Elementary school	13,848	39.5%
High school	6,902	19.6%
College / grad school	10,543	29.6%

Employment

Industry of employment

Professional & management 22.6%

Education & healthcare 20.3%

Public administration 11.0%

Arts, food & hospitality 9.3%

Finance & real estate 7.2%

Retail trade 7.2%

Construction 7.1%

Other services 6.6%

Manufacturing 2.6%

Transportation & utilities 2.6%

Information 2.5%

Wholesale trade 1.1%

Occupation

Category	%
Management, business & arts	58.5%
Service	14.4%
Sales & office	15.8%
Natural resources & construction	6.6%
Production & transportation	4.8%

Employment type

Type	%
Private sector	69.4%
Government	23.7%
Self-employed	6.8%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	51.9%
Carpool	6.8%
Public transit	11.9%
Walk	2.0%
Other means	2.4%
Avg commute (minutes)	31.5

Poverty

All people 7.6%

Under 18 years 8.4%

18 and over 7.4%

Married-couple families 3.1%

Female-led households 8.6%

Income support

Source	% of households
Social Security	24.2%
Retirement income	20.4%
Supplemental Security	4.2%
Cash public assistance	2.3%
Food stamps / SNAP	8.1%

Health indicators

Condition	%
High blood pressure	26.6%
High cholesterol	32.6%
Heart disease	4.6%
Stroke	2.2%
Asthma	7.9%
Arthritis	17.9%
Kidney disease	2.3%
Pulmonary disease	4.0%
Cancer	5.8%

Behavior / access	%
Binge drinking	12.7%
No physical activity	17.0%
Less than 7 hrs sleep	29.1%
Fair or poor health	9.3%
Poor mental health	11.2%
Poor physical health	6.3%
No health insurance	12.3%
Visited doctor (checkup)	71.9%
Visited dentist	68.9%
Cholesterol screening	92.5%
Teeth loss	7.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	4,714	4.1%

Disability	%
Any disability	9.4%
Under 18	3.7%
18–64 years	6.4%
65 and over	28.4%

Health insurance coverage

Type	%
Private insurance	78.8%
Public insurance	27.0%
Uninsured under 19	2.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	139,037	95.3%
Spanish	22,807	18.3%
Other Indo-European	8,882	8.9%
Asian & Pacific Islander	4,343	2.9%
Other languages	8,403	5.7%

Place of birth & citizenship

Origin	Count	%
Native born (US)	95,507	65.7%
Born in same state	92,851	64.0%
Born in different state	34,378	25.4%
Foreign born	2,656	1.7%
Naturalized citizen	50,397	34.3%
Not a US citizen	28,385	57.0%

Ancestry

Ancestry	Count	%
Italian	12,018	8.2%
French	9,341	6.4%
Arab	4,003	2.7%
English	1,068	0.7%
Irish	1,010	0.7%

Ancestry	Count	%
Polish	562	0.4%
Norwegian	514	0.4%
German	340	0.2%
Dutch	155	0.1%

Technology access

Metric	% of households
Computer access	37.8%
Internet access	97.3%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Rockville, MD have?

Rockville, MD has 5 ZIP codes: 20850, 20851, 20852, 20853, and 20857. Each ZIP code serves a distinct delivery area within the city and surrounding region.